BMW X5 F15 — AdBlue tank heater fault
A fault was found in the AdBlue tank heater on a BMW X5 F15. Read about the ECU software change and a separate sensor issue.
This BMW X5 F15 arrived with an AdBlue/SCR warning. Diagnostics found a fault with the tank heating element; as explained in the video, replacing it would require changing the tank assembly. The owner chose not to carry out the repair and asked for the AdBlue functions to be disabled in the control unit software.
The ECU software was read, the required changes prepared and the modified file written back. After the engine was started, the AdBlue warning no longer appeared. The video shows an initial check after programming, not long-term monitoring.
Diagnostics also revealed a separate issue: a sensor near the intake manifold was heavily contaminated with oil. The owner asked for a replacement sensor to be ordered; the replacement and its outcome are not shown in the video.
Video related to this case
Watch the video for additional details about this job.
